generated: '2026-07-19'
method: searched
source: live probes of /.well-known/* on leaner.co.jp and leaner.jp
result: none
caveat: >-
  leaner.co.jp is a Studio.Design / Nuxt single-page app that returns HTTP 200 with the generic
  HTML app shell for EVERY unknown path (soft-404). Status codes alone are therefore meaningless
  on that host; each probe below was content-verified against a known-bogus control path
  (/zzz-bogus-9999) and treated as a miss when the body matched the generic shell.
hosts:
- host: https://leaner.co.jp
  soft_404: true
  documents:
  - path: /.well-known/security.txt
    status: 200
    verified: false
    result: soft-404 (generic SPA shell, content-type text/html)
  - path: /.well-known/openid-configuration
    status: 200
    verified: false
    result: soft-404 (generic SPA shell, content-type text/html)
  - path: /.well-known/api-catalog
    status: 200
    verified: false
    result: soft-404 (generic SPA shell, content-type text/html)
  - path: /llms.txt
    status: 200
    verified: false
    result: soft-404 (generic SPA shell, content-type text/html)
  - path: /robots.txt
    status: 200
    verified: true
    result: real (text/plain; allows all, points to /sitemap.xml)
- host: https://leaner.jp
  soft_404: false
  documents:
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/openid-configuration
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /llms.txt
    status: 404
  - path: /robots.txt
    status: 200
    verified: true